package com.loong.x.common.config;

import com.loong.x.common.utils.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;
/**
 * Description
 * mvc配置类
 *
 * @author wcloong
 * @version 0.1.0
 * @since 2023/8/9 08:53
 */
@Slf4j
//@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    /**
     * 设置静态资源映射
     *
     * @param registry 资源注册
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开始进行静态资源映射...");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }

    /**
     * 扩展mvc框架的消息转换器
     *
     * @param converters 转换器集合
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器...");
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java对象转为json，格式化时间
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        //设置下标为0，优先使用
        converters.add(0, messageConverter);
    }

    @Override
    public void addCorsMappings(CorsRegistry registry){
        registry.addMapping("/*/**")
                .allowedHeaders("*")
                .allowedMethods("*")
                .maxAge(3600)
                .allowedOrigins("*");
    }

}
